A magnetic filter is designed to protect your heating system by capturing sludge, rust and metallic debris circulating through the pipework. If your magnetic filter is repeatedly collecting excessive contamination, it can be a clear indication that a powerflush is required. At Alliance CFM, we assess heating systems thoroughly and carry out professional powerflushing to restore reliability.
What a Magnetic Filter Does
Modern heating systems often include a magnetic filter installed on the return pipe to the boiler. Its purpose is to attract and trap iron oxide sludge and other metallic particles that build up over time due to corrosion inside radiators and pipework. While it is normal for some debris to be present, heavy sludge accumulation or frequent blockages suggest that the system water is heavily contaminated and may require more extensive cleaning.
Professional System Assessment
Our engineers begin by inspecting the magnetic filter and assessing overall system condition. We check radiator performance, system pressure, water quality and boiler operation to determine whether a full powerflush is necessary. If contamination is widespread, we will recommend a professional powerflush to remove sludge and restore proper water flow throughout the system.
Expert Powerflushing Services
A powerflush involves circulating specialist cleaning chemicals through the heating system at controlled pressure to break down and remove sludge, rust and debris. The system is then thoroughly flushed with clean water and treated with a corrosion inhibitor to help prevent future build up. This process improves radiator performance, enhances heat distribution, reduces strain on the boiler and can help lower energy consumption.
Book a Heating System Assessment
If your magnetic filter is collecting excessive sludge or your heating system is underperforming, contact Alliance CFM for a professional inspection. We will determine whether a powerflush is required and restore your system to efficient operation. Call 01182301268 to speak with our team or email contact@alliancecfm.com to arrange a visit.



